DAC081C081 Datasheet, PDF (1/41 Pages) Texas Instruments – 8-Bit Micro Power Digital-to-Analog Converter

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DAC081C081, DAC081C085
SNAS449E – FEBRUARY 2008 – REVISED JANUARY 2016
DAC081C08x 8-Bit Micro Power Digital-to-Analog Converter With An I²C-Compatible
Interface
1 Features
•1 Ensured Monotonicity to 8-bits
• Low Power Operation: 156 µA Maximum at 3.3 V
• Extended Power Supply Range (2.7 V to 5.5 V)
• I²C-Compatible 2-Wire Interface Which Supports
Standard (100-kHz), Fast (400-kHz), and High-
Speed (3.4-MHz) Modes
• Rail-to-Rail Voltage Output
• Very Small Package
• Resolution 8 Bits
• INL ±0.6 LSB (Maximum)
• DNL ±0.1 LSB (Maximum)
• Settling Time 4.5 μs (Maximum)
• Zero Code Error +10 mV (Maximum)
• Full-Scale Error −0.7 %FS (Maximum)
• Supply Power
– Normal
– 380 μW (3 V)
– 730 μW (5 V) Typical
– Power Down
– 0.5 μW (3 V)
– 0.9 μW (5 V) Typical
2 Applications
• Industrial Process Control
• Portable Instruments
• Digital Gain and Offset Adjustments
• Programmable Voltage and Current Sources
• Test Equipment
3 Description
The DAC081C08x device is an 8-bit, single-channel,
voltage-output digital-to-analog converter (DAC) that
operates from a 2.7-V to 5.5-V supply. The output
amplifier allows rail-to-rail output swing and has an
4.5-µsec settling time. The DAC081C081 uses the
supply voltage as the reference to provide the widest
dynamic output range and typically consumes 132 µA
while operating at 5 V. It is available in 6-lead SOT
and WSON packages and provides three address
options (pin selectable).
As an alternative, the DAC081C085 provides nine I²C
addressing options and uses an external reference. It
has the same performance and settling time as the
DAC081C081. It is available in an 8-lead VSSOP.
The DAC081C081 and DAC081C085 use a 2-wire,
I²C-compatible serial interface that operates in all
three speed modes, including high-speed mode (3.4
MHz). An external address selection pin allows up to
three DAC081C081 or nine DAC081C085 devices
per 2-wire bus. Pin-compatible alternatives to the
DAC081C081 are available that provide additional
address options.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DAC081C081
WSON (6)
SOT (6)
2.20 mm × 2.50 mm
1.60 mm × 2.90 mm
DAC081C085
VSSOP (8)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
POWER-ON
RESET
Block Diagram
VA* VREF*
GND
DAC081C081 / DAC081C085
DAC
REGISTER
REF
8 BIT DAC
8
BUFFER
VOUT
8
I²C
INTERFACE
POWER-DOWN
CONTROL
LOGIC
2.5k
100k
* NOTE: ADR1 and VREF are for the DAC081C085 only. The DAC081C085 uses an external
reference (VREF), whereas, the DAC081C081 uses the supply (VA) as the reference.
ADR1* ADR0
SCL SDA
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.